Now showing items 24-43 of 45

  • Parameter effecting the experimental determination of modal properties 

    Řehák, Kamil; Kučera, Pavel; Prokop, Aleš (JVE Intenational, 2018-05-22)
    The investigation of structure dynamic behavior can be done by finding modal properties, which are based on the relation of force and vibration response. The information about exact force value is in most application ...
  • Piston secondary motion measurement by laser displacement sensors 

    Dlugoš, Jozef; Novotný, Pavel (JVE Intenational, 2018-05-22)
    Measurement of the piston group behavior is still a challenge. Achieved accuracy and complexity go hand in hand with the financial requirements. This paper presents an unconventional measurement of the piston secondary ...
  • Prototyping a System for Truck Differential Lock Control 

    Kučera, Pavel; Píštěk, Václav (MDPI, 2019-08-20)
    The article deals with the development of a mechatronic system for locking vehicle differentials. An important benefit of this system is that it prevents the jamming of the vehicle in difficult adhesion conditions. The ...
  • Research and Development of Self-Contained Water Injection Systems 

    Bazala, Jiří; Hébert, Guillaume; Fischer, Oliver; Nothbaum, Juergen; Thewes, Matthias; Vosshall, Tobias; Diehl, Peter; Kučera, Pavel (MDPI, 2021-05-18)
    Reducing fuel consumption and thus CO2 emissions is one of the most urgent tasks of current research in the field of internal combustion engines. Water Injection has proven its benefits to increase power or optimize fuel ...
  • The research of the influence of viscous interaction between wagon and container on the dynamic load during transportation by rail ferry 

    Lovska, Alyona; Fomin, Oleksij; Píštěk, Václav; Kučera, Pavel (JVE International, 2020-05-07)
    This paper proposes the improved scheme of interaction of containers with the load-bearing structure of the wagon when transporting by rail ferry. In order to ensure the stability of the container balance in the event of ...
  • Research to improve traction and dynamic quality of locomotives 

    Píštěk, Václav; Kučera, Pavel (JVE International, 2017-09-27)
    The article reviews and analyzes available theoretical and experimental studies aimed at improving the tractive and dynamic characteristics of locomotives. Based on the information received, the authors formulated the ...
  • Results of the experimental research of dynamic vibration processes of the rail for rolling stocks fault diagnostics 

    Píštěk, Václav; Kravchenko, Kostiantyn; Kučera, Pavel (JVE International, 2017-09-27)
    The paper discusses the preconditions of the methodology development of diagnosis system for assessing dynamic impact of the rolling stock on the basis of processing and analysis of data obtained in operation on the results ...
  • Self-Heating Mould for Composite Manufacturing 

    Kondratiev, Andrii; Píštěk, Václav; Purhina, Svitlana; Shevtsova, Maryna; Fomina, Anna; Kučera, Pavel (MDPI, 2021-09-12)
    The shipbuilding industry, engine manufacturing, aviation, rocket and space technology are promising fields of application for polymeric composite materials. Shape-generating moulding tools with internal heating are used ...
  • SHAFT VIBRATION OF THE TRUCK 

    Kučera, Pavel; Píštěk, Václav (Brno University of Technology, 2017-05-15)
    This article describes analysis of vibrations in a powertrain of a truck with 8x8 drive. It may be caused by a deflection of the rotating drive shaft. The aim was to reduce the vibrations, therefore, a transient computational ...
  • Small Cogeneration Unit with Heat and Electricity Storage 

    Štětina, Josef; Březina, Michal; Böhm, Michael (MDPI, 2021-04-09)
    A micro cogeneration unit based on a three-cylinder internal combustion engine, Skoda MPI 1.0 L compressed natural gas (CNG), with an output of 25 kW at 3000 RPM is proposed in this paper. It is a relatively simple engine, ...
  • Strength characteristic determination of a flat wagon carrying structure with a lower centre of gravity 

    Fomin, Oleksij; Lovska, Alyona; Píštěk, Václav; Kučera, Pavel (JVE International, 2020-06-29)
    The study deals with application of flat wagons with lower centre of gravity for transportation of heavy containers and military equipment. A special feature of the wagon structure is the presence of swivel sectors, which ...
  • Substantiation of Improvements for the Bearing Structure of an Open Car to Provide a Higher Security during Rail/Sea Transportation 

    Fomin, Oleksij; Lovska, Alyona; Kučera, Pavel; Píštěk, Václav (MDPI, 2021-08-13)
    This article presents the most frequent damage in the bearing structure of a rail car during rail/sea transportation. The study includes load modes for the bearing structure of an open car such as unloading with a grab and ...
  • Supplying system abrasive material with automatic dosing control 

    Píštěk, Václav; Kučera, Pavel (JVE Intenational, 2018-05-22)
    The article examines the work and key elements of the automated system for supplying abrasive material using a managed pneumatic dispensing. Proposed to manage the flow of abrasive material using continuous (for the case ...
  • Testing of the Mechatronic Robotic System of the Differential Lock Control on a Truck 

    Kučera, Pavel; Píštěk, Václav (SAGE Publications, 2017-10-30)
    This article deals with testing the algorithm developed for autonomous control lock of the differential in a truck. Hardware for HIL testing of robotic systems or automotive systems is used and the proposed control algorithm ...
  • Torsional analysis of the engine computational model 

    Kučera, Pavel; Píštěk, Václav (JVE Intenational, 2017-12-17)
    The paper deals with basic behaviour and torsional analysis of the engine computational model. This computational model is assembled from own blocks which are created using the basic elements of Simulink software. The paper ...
  • A torsional vibration damper based on a serial viscoelastic coupling of its seismic mass 

    Píštěk, Václav; Kučera, Pavel; Svída, David; Beran, Martin (JVE Intenational, 2017-12-17)
    The design of dynamic torsional vibration dampers of piston internal combustion engines is generally based on the principle of a dynamic damper with one degree of freedom in which the coupling of the seismic mass of the ...
  • Transmission error analysis for heavy-duty gearbox 

    Kučera, Pavel; Píštěk, Václav; Prokop, Aleš; Řehák, Kamil (JVE Intenational, 2018-05-22)
    This paper deals with an analysis of the transmission error. For this purpose, the measuring loop was assembled from two gear boxes. Subsequently, angles, torque and shaft speed were set or measured. For the evaluation a ...
  • Truck vibrations caused by rotating shaft deflection 

    Kučera, Pavel; Píštěk, Václav (JVE International, 2017-11-15)
    The article deals with the creation of a transient computational model of rotating shaft deflection. This model is used for analysis of vibrations in the truck powertrain with an 8x8 drive. This vehicle is intended for ...
  • Truck vibrations caused by unbalanced rotating shaft 

    Kučera, Pavel; Píštěk, Václav (JVE International, 2016-08-31)
    This article presents an analysis of vibrations in drivetrain of an 8x8 truck caused by an unbalanced rotating drive shaft. This truck is also used in military and fire sphere. The aim was to reduce the vibrations affecting ...
  • An unconventional rubber torsional vibration damper with two degrees of freedom 

    Píštěk, Václav; Kučera, Pavel; Kravchenko, Kostiantyn; Svída, David (JVE International, 2017-09-27)
    Rubber torsional dampers with one degree of freedom are a long-time proven tool for vibration damping in crank mechanisms, especially for passenger cars. Their advantages include, in particular, a relatively simple design ...